* {
    padding: 0;
    margin: 0;
}
img{
    width:100%;
}

a {
    text-decoration: none;
    display: block;
    color: #666;
}
span{
    display: block;
}


#top{
    width: 100%;
    height: 180px;
   
}
#ul1 li{
    list-style: none;
    width: 100px;
    height: 30px;
    float: left;
    line-height: 30px;
    font-size: 16px;
    background-color: white;
}
#ul1{
    width: 400px;
    float: left;
   
    height: 30px;
}
#tright{
    width: 300px;
    height: 30px;
    float: right;
   
    text-align: center;
    background-color: white;
}
#zhong{
    width: 100%;
    height: 100px;
   
    overflow: hidden;
   
}
#logo{
    width: 290px;
    height: 70px;
   
    margin-top: 10px;
    margin-left: 10px;
    float: left;
    
}
#sousuo{
    width: 665px;
    height: 70px;
   
    margin-left: 40px;
    margin-top: 10px;
    float: left;
}
input{
    width: 465px;
    height: 45px;
    margin-top: 10px;
    margin-left: 20px;
    float: left;
}
#gou{
    width: 215px;
    height: 60px;
    float: right;
   
    margin-top: 20px;
    text-align: center;
    line-height: 60px;
}
#nav{
    width: 100%;
    height: 50px;
 
}
#nav ul {
    width: 100%;
    height: 50px;
    
}
#nav ul li{
    float: left;
    margin-left: 50px;
    margin-top: 15px;
    text-align: center;
}
#nav ul :hover{
    background-color: red;
}
/* 尾部*/
footer #help{
    width: 100%;
    height: 472px;
   
    margin-top: 30px;
}
#helptop{
    height: 158px;
   
    border-bottom: 1px solid gray;
}
#ht1{
    width: 150px;
    height: 136px;
   
    float: left;
    margin-left: 40px;
    img{
        width: 100%;
    }
}
#ht2{
    width: 150px;
    height: 136px;
   
    float: left;
    margin-left: 40px;
}
#ht3{
    width: 150px;
    height: 136px;
   
    float: left;
    margin-left: 40px;
}
#ht4{
    width: 150px;
    height: 136px;
    
    float: left;
    margin-left: 40px;
}
#ht5{
    width: 150px;
    height: 136px;
   
    float: left;
    margin-left: 40px;
}
#ht6{
    width: 150px;
    height: 136px;
    
    float: left;
    margin-left: 40px;
}
#helpbottom{
    height: 224px;
   
}
#hb1{
    width: 218px;
    height: 139px;
    
    float: left;
}
#hb2{
    float: left;
    width: 218px;
    height: 208px;
   
    margin-left: 30px;
}
#hb3{
    float: left;
    width: 218px;
    height: 139px;
    
    margin-left: 30px;
}
#hb4{
    float: left;
    width: 218px;
    height: 139px;
  
    margin-left: 30px;
}
#hb5{
    float: left;
    width: 218px;
    height: 224px;
    
    margin-left: 30px;
}
#bottom{
    width: 100%;
    height: 156px;
   
}
#bt{
    height: 55px;
}